Part 2: What Makes a Planet a Planet? List the three criteria defined by the International Astronomical Union (IAU)that an object must meet to be considered a planet: 1. __ 2. 3.

Question

Part 2: What Makes a Planet a Planet? List the three criteria defined by the International Astronomical Union (IAU)that an object must meet to be considered a planet: 1. __ 2. 3.

Answer 1

1. The object must be in orbit around the Sun.2. The object must have sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a nearly round shape.3. The object must have cleared its neighboring region of other objects.

Answer 2

## Step 1The International Astronomical Union (IAU) has defined three criteria that an object must meet to be considered a planet. The first criterion is that the object must be in orbit around the Sun. This means that the object must be in a circular or elliptical path around the Sun.## Step 2The second criterion is that the object must have sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a nearly round shape. This means that the object must be large enough for its own gravity to pull it into a spherical shape.## Step 3The third criterion is that the object must have cleared its neighboring region of other objects. This means that the object must be large enough to have cleared its orbit of other debris.

Problemas

Part 2: What Makes a Planet a Planet? List the three criteria defined by the International Astronomical Union (IAU)that an object must meet to be considered a planet: 1. __ 2. 3.

Roztwór

Respuesta

Explicación